Given that mDE = 49° and mFG = 12°, find mFE.

Cindy uses 1-inch cubes to find the volume of a jewelry box shaped like a rectangular prism. she uses 780 cubes to completely fill the jewelry box with no gaps or overlaps. if the jewelry box is 13 inches long and 5 inches wide, how tall is cindy’s jewelry box?

What are correct trigonometric ratios that could be used to determine the length of ln

With #! i’ve tried to figure it out but i can’t.